Solve the problem.The angle of elevation from the top of a house to a plane flying 7200 meters above the house is x radians. If d represents the horizontal distance, in meters, of the plane from the house, express d in terms of a trigonometric function of x.
A. d = 7200 tan x
B. d = 7200 cot x
C. d = 
D. d = 7200 sec x
Answer: B
Mathematics
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